Light diffuser



FIG. 1 is a bottom plan view of a light diffuser showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top, front, and side perspective view thereof;

FIG. 4 is a bottom, front, and side perspective view thereof;

FIG. 5 is a side elevation view thereof, wherein the opposite side appears the same in mirror image; and,

FIG. 6 is a top plan view thereof.

The broken lines shown in the drawings illustrate portions of the light diffuser that from no part of the claimed design. 

CLAIM The ornamental design for a light diffuser, as shown and described. 